 /*******************************************************************************
  * Copyright (c) 2000, 2004 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.views.markers.internal;

 import java.util.ArrayList ;
 import java.util.List ;

 import org.eclipse.core.runtime.Platform;
 import org.eclipse.jface.util.SafeRunnable;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.ISelectionProvider;
 import org.eclipse.jface.viewers.SelectionChangedEvent;

 /**
  *
  */
 class SelectionProviderAdapter implements ISelectionProvider {

     List listeners = new ArrayList ();

     ISelection theSelection = null;

     public void addSelectionChangedListener(ISelectionChangedListener listener) {
         listeners.add(listener);
     }

     public ISelection getSelection() {
         return theSelection;
     }

     public void removeSelectionChangedListener(
             ISelectionChangedListener listener) {
         listeners.remove(listener);
     }

     public void setSelection(ISelection selection) {
         theSelection = selection;
         final SelectionChangedEvent e = new SelectionChangedEvent(this, selection);
         Object [] listenersArray = listeners.toArray();
         
         for (int i = 0; i < listenersArray.length; i++) {
             final ISelectionChangedListener l = (ISelectionChangedListener) listenersArray[i];
             Platform.run(new SafeRunnable() {
                 public void run() {
                     l.selectionChanged(e);
                 }
             });
         }
     }

 }

